Ebooks can be a hard path to online success too, from my personal experience but as you rightly said, it can be a great gateway vehicle to drive traffic to other monetized sites. Having said that though, getting your ebook on Amazon, Barnes & Noble, Lulu, Smaswords etc., is a great way to get noticed and make money overtime. An arresting e-book cover is a MUST! And if you are a DIY freak like me, you could do your own e-book cover for $0. I also use a graphic design software similar to Philip’s.
Since time is the most precious commodity on this earth, invest the time at the front-end so that you can reap the benefits on the back-end. This means putting in a bit of sweat equity and not getting paid today. Rather, you'll get paid somewhere down the road. And you'll continue getting paid whether you keep building that passive income stream or you stop. It's obvious that this is the preferred route, but clearly the road less traveled.
This side hustle can easily become a full-time job! If you’ve got expertise in an area and think you can help small businesses near you, give this a shot. For instance, Ben and I know a lot about running Facebook advertising campaigns, so we approached the owner of our gym if he would let us design a few campaigns for him. And of course, he was thrilled to get the help! Here’s a useful 18 Step Checklist for Becoming a Small Business Consultant.